Internal combustion engine



inks. i935.. 4 M L, MORRIS ET AL n 2,023,967

INTERNAL COMBUS'IION ENGINE Original Filed Oct. 2l, 1933 2 Sheets-Sheetl l l4lll/[ll/(lllllllllllllllll w, 1935. H. L. MoRRls Er AL 923,957

INTERNAL COMBUSTION ENGINE Original Filed Oct. 2l, 1933 2 Sheets-Sheet 2Sbb) Patented Dec. 10, 1935 INTERNAL COMBUSTION ENGINE Harold L. Morris,Berkeley, Calif., and Frederick E. Dayes, Philadelphia, Pa., assignorsto American Car & Foundry Motors Company, New York, N. Y., a corporationof Delaware original application october 21, 1933, serial No.`

694,552. Divided and this application October s, 1934, serai N0. 746,799

3 Claims.

'I'his invention relates generally to internal combustion engines andhas particular reference to engines of the horizontal type and theinvention relates more specifically to a cooling arrangement for thecylinders of such engines.

' One object of this invention is the provision of an internalcombustion engine of the horizontal type in which a water jacket isprovided entirely around each of the several cylinders thereof.

This application is a division of application filed October 21, 1933,Serial No. 694,552, Internal combustion engine.

Other objects and advantages of this invention will lbe apparent fromthe following description taken in Yconjunction with the accompanyingdrawings in which:

Figure 1 is a view in transverse vertical section of an engine embodyingthe present invention;

Fig. 2 is an enlarged ydetail View, in section, through a portion of thecylinder block at its forward end, the view also showing a portion ofthe cylinder head and manifold associated there- With, and

Fig. 3 is a sectional view on the line 3 3, Fig. 2.

Referring now more particularly to the drawings in which similarcharacters of reference designate similar parts in the several views,the drawings show an engine of the horizontal type comprising a cylinderblock 2 and a crank case Il. In the instance shown the crank case andcylinder block are formed as a unitary casting but obviously this ismerely by Way of example as they may be independently cast elementssuitably connected together. The engine also includes a cylinder head E,see Fig. 2, said figure showing only a portion thereof but suflicient todisclose a water jacket as more clearly described hereinafter.

The engine is provided with a plurality of cylinder sleeves 3 Which arefitted within the cylinder block in such a manner as to provide aseparate water jacket l0 around each of the sleeves 8. As shown clearlyin Fig. 1, the rear end portion of each cylinder sleeve 8 is enlargedtted in a circular recess formed in an inturned annular ange i3 at theforward end of the cylinder block. The construction just describedobviously provides for spacing the walls of the 55 cylinder block fromthe sleeves 8 whereby to provide independently functioning separatewater I jackets i3 for the cylinders of the engine.

As shown in Fig. 2, a water intake manifold indicated generally at M isformed with the lower Y wall 22 of the cylinder block adjacent theforward end portion thereof and is provided with a water 15 intake pipeP fastened thereto in any suitable manner as by the bolts 2E. Themanifold M eX- tends substantially the full length of the cylinder block2 and, adjacent each water jacket lil, a port 28 is provided to permitpassage of water 20 from the manifold to each of sai-d water jackets.

The cylinder head 6 is connected to the cylinder block 2 in any suitablemanner and is so formed as to provide a water jacket Sii which receiveswater from the jackets i@ through registering ports 32 and 34 formed inthe cylinder block 2 and cylinder head respectively. As clearly shown inFig. 2, ports 32 and 34 are formed both in the upper and lower portionsof the cylinder block and cylinder head respectively. There are separateports for each of the several cylinders of the engine which feed intothe water jacket 3i? of the cylinder head 6.

Secured to the cylinder head 6, as clearly shown in Fig. 2, is an intakemanifold B which com- 35 prises preferably a casting having a conduit 36for fuel and a passage 38 connected with the water jacket 3D of thecylinder head 6; the passage 38 leading to a water return line i2connected to the manifold B by suitable fasteners such as the 40 bolts42. In practice, and as mentioned in copending application, Serial No.694,552, of which this application is a division, the intake manifoldcasting will be provided with a plurality of passages 38 each leading toand connected with a 45 Water return line 4i).

From the description just above it can be seen that the presentinvention provides an internal combustion engine of the horizontal typehaving a plurality of cylinders, each of which is completely surroundedby a water jacket whereby water completely encircles each of thecylinders. Still further, it can be seen that the water inlet isarranged at the lower part of the cylinders whereby the water enters thecylinder block from below and, as it becomes heated, passes upwardly andinto the cylinder head and finally, through the passages 38 of theintake manifold B, to the return line 40. Withi this arrangement thepossibility of the formation of steam pockets in the water jacket isefectually eliminated.

The drawings illustrate one embodiment of the present invention but itis to be understood that they are for illustrative purposes only andVarious changes in the form and proportions of the construction may bemade within the scope of the appended claims without departing from thespirit of the invention.

What is claimed is:

1. In an internal combustion engine having an an inlet, a crank case, acylinder block extending therefrom in a substantially horizontal plane,a cylinder sleeve in said block having its end portions in sealingengagement with the cylinder block and its intermediate portion spacedfrom the cylinder block to provide a water jacket eX- tending completelyaround the cylinder sleeve between the end portions, means for admittingwater into the lower portion of said water jacket, a cylinder headsecured to the forward end portion of the cylinder block and formed toinclude a water jacket, ports connecting the water jacket of thecylinder block with the water jacket of the cylinder head, and means fordischarging the warm water from the cylinder head at its upper portionand transferring partv of its heat to the inlet gases. Y

2. In an internal combustion engine, a crank case, a cylinder blockextending therefrom in a substantially horizontally plane, a cylindersleeve in said block having its end portions in sealing engagement withthe cylinder block and its intermediate portion spaced from the cylinderblock to provide a water jacket extending completely around the cylindersleeve between the 5 end portions, means for admitting water into thelower portion of said water jacket, a cylinder head secured to theforward end portion of the cylinder block and formed to include a waterjacket, ports connecting the water jacket of the cylinder block with thewater jacket of the cylinder head, and an intake manifold secured to thecylinder head and formed to provide receiving portions for water fromthe cylinder head water jacket.

3. In an internal combustion engine, a crank case, a cylinder blockextending therefrom in a substantially horizontal plane, a cylindersleeve in said block having its end portions in sealing engagement withthe. cylinder block and its inter- 20 mediate portion spaced from thecylinder block to provide a water jacket extending completely around thecylinder sleeve between the end portions, means for admitting water intothe lower portion of said water jacket, a cylinder head se- 25 cured tothe forward end portion of the cylinder block and formed to include awater jacket, ports connecting the water jacket of the cylinder blockwith the water jacket of the cylinder head, and an intake manifoldsecured to the upper surface of the cylinder head and formed to providereceiving portions for water from the cylinder head water jacket.

HAROLD L. MORRIS.

FREDERICK E. DAYES.

